Cannot add new folder in start menu

After I create or add a new folder in start menu, but can't rename the folder with some error:

The action can't be completed because the folder or a file in it is open in another program. Close the folder or file and try again.

How to Fix the issues:
* First you should be administrator in Windows 7.
* Click Start button --> All Programs --> Accessories --> Command Prompt.
* Enter the following commands in Command Prompt:
cd C:\ProgramData\Microsoft\Windows\Start Menu\Programs
mkdir Multimedia
mkdir " The folder name you want to create"